Speedo Men's UPF 50+ Script Chestband Loose Fit Short Sleeve Rashguard Swim Tee spandex 82% Nylon, 18% Spandex High nylon content lycra blend fabric for long lasting durability Features Speedo's trademarked "UV 50+ Block the Burn" protection, tested to guard against sun exposure's effect on premature skin aging and skin cancer Hand wash cold water, hang or lay flat to dry Imported